Case 207. Trypanosoma cruzi in cultured HeLa cells (Giemsa)

　 　 　 　
　 Within the infected cells, it is difficult to distinguish Trypanosoma from Leishmania. The intracellular aflagellated form is called the amastigote. 　
　 　 　 　

　

 　 Trypanosomiasis of both American and African types is serious zoonosis, and is one of the 6 target disorders of WHO's TDR (tropical disease research and training) planning. The other 5 TDR disorders include leishmaniasis, malaria, schistosomiasis, filariasis and leprosy.